Home / 858,134.50-1,287,160.00-318,495.89

Finding the Fourth Proportional to 858,134.50, 1,287,160.00 and 318,495.89

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Solution

The fourth proportional to 858,134.50, 1,287,160.00 and 318,495.89 is: 477,728.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,134.50 : 1,287,160.00 = 318,495.89 : x
  2. Step 2: Convert to fraction form
    858,134.50/1,287,160.00 = 318,495.89/x
  3. Step 3: Cross multiply
    858,134.50x = 1,287,160.00 × 318,495.89
  4. Step 4: Simplify right side
    858,134.50x = 409,955,172,194.06
  5. Step 5: Solve for x
    x = 409,955,172,194.06/858,134.50
  6. Step 6: Final answer
    x = 477,728.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.